package com.atguigu.gulimall.product.service.impl;

import com.atguigu.common.to.SkuReductionTo;
import com.atguigu.common.to.SpuBoundsTo;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.product.entity.*;
import com.atguigu.gulimall.product.feign.CouponFeignService;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.*;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.CollectionUtils;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    SpuImagesService spuImagesService;

    @Autowired
    AttrService attrService;

    @Autowired
    ProductAttrValueService productAttrValueService;

    @Autowired
    SkuInfoService skuInfoService;

    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo spuSaveVo) {

        // 1、保存spu基本信息 pms_spu_info
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(spuSaveVo, infoEntity);
        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(infoEntity);

        // 2、保存spu的描述图片 pms_spu_info_desc
        List<String> decript = spuSaveVo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(infoEntity.getId());
        descEntity.setDecript(StringUtils.join(decript, ","));
        spuInfoDescService.save(descEntity);

        // 3、保存spu图片集 pms_spu_images
        List<String> images = spuSaveVo.getImages();
        if (!CollectionUtils.isEmpty(images)) {
            List<SpuImagesEntity> collect = images.stream().map((img) -> {
                SpuImagesEntity imagesEntity = new SpuImagesEntity();
                imagesEntity.setSpuId(infoEntity.getId());
                imagesEntity.setImgUrl(img);
                return imagesEntity;
            }).collect(Collectors.toList());
            spuImagesService.saveBatch(collect);
        }

        // 4、保存spu规格参数 pms_product_attr_value
        List<BaseAttrs> baseAttrs = spuSaveVo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity attrValueEntity = new ProductAttrValueEntity();
            attrValueEntity.setAttrId(attr.getAttrId());
            AttrEntity byId = attrService.getById(attr.getAttrId());
            attrValueEntity.setAttrName(byId.getAttrName());
            attrValueEntity.setAttrValue(attr.getAttrValues());
            attrValueEntity.setQuickShow(attr.getShowDesc());
            attrValueEntity.setSpuId(infoEntity.getId());
            return attrValueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.saveBatch(collect);

        // 5、保存spu积分信息; gulimall_sms  -> sms_spu_bounds
        Bounds bounds = spuSaveVo.getBounds();
        SpuBoundsTo spuBoundsTo = new SpuBoundsTo();
        BeanUtils.copyProperties(bounds, spuBoundsTo);
        spuBoundsTo.setSpuId(infoEntity.getId());

        R r = couponFeignService.saveSpuBounds(spuBoundsTo);
        if (r.getCode() != 0) {
            log.error("远程保存spu积分信息失败！");
        }

        // 5、保存当前spu对应的所有sku信息

        List<Skus> skus = spuSaveVo.getSkus();
        if (!CollectionUtils.isEmpty(skus)) {
            // 5.1、sku基本信息  pms_sku_info
            skus.forEach(sku -> {
                String defaultImage = "";
                for (Images image : sku.getImages()) {
                    if (image.getDefaultImg() == 1) defaultImage = image.getImgUrl();
                }

                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(sku, skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImage);

                skuInfoService.save(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();

                // 5.2sku图片信息  pms_sku_images
                List<SkuImagesEntity> imagesEntities = sku.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(item -> {
                    // 返回true就是需要的,返回 false就是被过滤的
                    return StringUtils.isNotEmpty(item.getImgUrl());
                }).collect(Collectors.toList());

                skuImagesService.saveBatch(imagesEntities);

                // 5.3、sku的销售属性 pms_sku_sale_attr_value
                List<Attr> attr = sku.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity skuSaleAttrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, skuSaleAttrValueEntity);
                    skuSaleAttrValueEntity.setSkuId(skuId);
                    return skuSaleAttrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);

                // 5.4 sku的优惠满减信息
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(skus, skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullPrice().compareTo(BigDecimal.ZERO) > 0
                        || skuReductionTo.getFullCount() > 0) {
                    R r1 = couponFeignService.saveSkuRedection(skuReductionTo);
                    if (r1.getCode() != 0) {
                        log.error("远程保存sku优惠信息失败！");
                    }
                }


            });
        }


    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {
        this.baseMapper.insert(infoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        String status = (String) params.get("status");
        String key = (String) params.get("key");
        String brandId = (String) params.get("brandId");
        String catelogId = (String) params.get("catelogId");
        if (StringUtils.isNotBlank(status)) {
            wrapper.eq("publish_status", status);
        }
        if (StringUtils.isNotBlank(key)) {
            wrapper.and(w -> {
                w.eq("id", key).or().like("spu_name", key);
            });
        }
        if (StringUtils.isNotBlank(brandId) && "!0".equals(brandId)) {
            wrapper.eq("brand_id", brandId);
        }
        if (StringUtils.isNotBlank(catelogId) && "!0".equals(brandId)) {
            wrapper.eq("catalog_id", catelogId);
        }
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );

        return new PageUtils(page);
    }
}